Dr Stephan Spiekman

Dr Stephan Spiekman

Department: Earth Sciences
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Summary

I study Triassic reptile evolution. Recently, I finished my PhD dissertation at the University of Zurich on the phylogeny and palaeobiology of "Protorosauria", a group of non-archosauriform archosauromorphs that includes the iconic long-necked Tanystropheus. I am now a postdoc at the Natural History Museum in London where I study early crocodylomorphs ("sphenosuchians") and other archosaurs from the Late Triassic to Early Jurassic of the UK, with a focus on their evolution across the T-J boundary.

Qualifications

Degrees

PhD, University of Zurich, Palaeontological Institute and Museum, Zurich, 2016 - 2020

MSc, Leiden University, Leiden, 2014 - 2016

BSc, Leiden University, Leiden, 2010 - 2013

Employment history

Academic

Research Fellow, Natural History Museum, Earth Sciences, United Kingdom, 2020 - 2022

Publications

Spiekman SNF, Ezcurra MD, Butler RJ, Fraser NC, Maidment SCR (2021) Pendraig milnerae , a new small-sized coelophysoid theropod from the Late Triassic of Wales. Royal Society Open Science, 8 (10) : doi: 10.1098/rsos.210915

Spiekman SNF, Neenan JM, Fraser NC, Fernandez V, Rieppel O, Nosotti S, Scheyer TM (null) The cranial morphology of Tanystropheus hydroides (Tanystropheidae, Archosauromorpha) as revealed by synchrotron microtomography. PeerJ, 8 : e10299 - e10299. doi: 10.7717/peerj.10299

Spiekman SNF, Neenan JM, Fraser NC, Fernandez V, Rieppel O, Nosotti S, Scheyer TM (2020) Aquatic Habits and Niche Partitioning in the Extraordinarily Long-Necked Triassic Reptile Tanystropheus. Current Biology, 30 (19) : 3889 - 3895.e2. doi: 10.1016/j.cub.2020.07.025

Miedema F, Spiekman SNF, Fernandez V, Reumer JWF, Scheyer TM (2020) Cranial morphology of the tanystropheid Macrocnemus bassanii unveiled using synchrotron microtomography. Scientific Reports, 10 (1) : doi: 10.1038/s41598-020-68912-4

Scheyer TM, Spiekman SNF, Sues H-D, Ezcurra MD, Butler RJ, Jones MEH (2020) Colobops : a juvenile rhynchocephalian reptile (Lepidosauromorpha), not a diminutive archosauromorph with an unusually strong bite. Royal Society Open Science, 7 (3) : 192179 - 192179. doi: 10.1098/rsos.192179

Scheyer T, Wang W, Chun L, Miedema F, Spiekman S (2020) Osteological re-description of Macrocnemus fuyuanensis (Archosauromorpha, Tanystropheidae) from the Middle Triassic of China. Vertebrata Palasiatica, 58 : 169 - 187. doi: 10.19615/j.cnki.1000-3118.200525

Miedema F, Spiekman SNF, Fernandez V, Reumer JWF, Scheyer TM (2019) Reconstructing the Cranial Morphology of the Early Archosauromorph Macrocnemus using Synchrotron Microtomography and 3D-Imaging. JOURNAL OF MORPHOLOGY 280 : S180 - S181.

Spiekman SNF, Neenan JM, Fraser NC, Rieppel O, Fernandez V, Scheyer TM (2019) The Skull of Tanystropheus as Revealed by Synchrotron Microtomography and its Implications for Phylogeny and Functional Morphology. JOURNAL OF MORPHOLOGY 280 : S223 - S223.

Spiekman S, Scheyer T (null) A taxonomic revision of the genus Tanystropheus (Archosauromorpha, Tanystropheidae). Palaeontologia Electronica, doi: 10.26879/1038

Spiekman SNF (2018) A new specimen of Prolacerta broomi from the lower Fremouw Formation (Early Triassic) of Antarctica, its biogeographical implications and a taxonomic revision. Scientific Reports, 8 (1) : doi: 10.1038/s41598-018-36499-6

Werneburg I, Spiekman S (2018) Mammalian embryology and organogenesis, In: Mammalian Evolution, Diversity and Systematics, Zachos F, Asher R (Eds). Walter de Gruyter GmbH & Co KG :

Introduction

Summary

I study Triassic reptile evolution. Recently, I finished my PhD dissertation at the University of Zurich on the phylogeny and palaeobiology of "Protorosauria", a group of non-archosauriform archosauromorphs that includes the iconic long-necked Tanystropheus. I am now a postdoc at the Natural History Museum in London where I study early crocodylomorphs ("sphenosuchians") and other archosaurs from the Late Triassic to Early Jurassic of the UK, with a focus on their evolution across the T-J boundary.

Qualifications

Degrees

PhD, University of Zurich, Palaeontological Institute and Museum, Zurich, 2016 - 2020

MSc, Leiden University, Leiden, 2014 - 2016

BSc, Leiden University, Leiden, 2010 - 2013

Employment history

Academic

Research Fellow, Natural History Museum, Earth Sciences, United Kingdom, 2020 - 2022

Publications

Publications

Spiekman SNF, Ezcurra MD, Butler RJ, Fraser NC, Maidment SCR (2021) Pendraig milnerae , a new small-sized coelophysoid theropod from the Late Triassic of Wales. Royal Society Open Science, 8 (10) : doi: 10.1098/rsos.210915

Spiekman SNF, Neenan JM, Fraser NC, Fernandez V, Rieppel O, Nosotti S, Scheyer TM (null) The cranial morphology of Tanystropheus hydroides (Tanystropheidae, Archosauromorpha) as revealed by synchrotron microtomography. PeerJ, 8 : e10299 - e10299. doi: 10.7717/peerj.10299

Spiekman SNF, Neenan JM, Fraser NC, Fernandez V, Rieppel O, Nosotti S, Scheyer TM (2020) Aquatic Habits and Niche Partitioning in the Extraordinarily Long-Necked Triassic Reptile Tanystropheus. Current Biology, 30 (19) : 3889 - 3895.e2. doi: 10.1016/j.cub.2020.07.025

Miedema F, Spiekman SNF, Fernandez V, Reumer JWF, Scheyer TM (2020) Cranial morphology of the tanystropheid Macrocnemus bassanii unveiled using synchrotron microtomography. Scientific Reports, 10 (1) : doi: 10.1038/s41598-020-68912-4

Scheyer TM, Spiekman SNF, Sues H-D, Ezcurra MD, Butler RJ, Jones MEH (2020) Colobops : a juvenile rhynchocephalian reptile (Lepidosauromorpha), not a diminutive archosauromorph with an unusually strong bite. Royal Society Open Science, 7 (3) : 192179 - 192179. doi: 10.1098/rsos.192179

Scheyer T, Wang W, Chun L, Miedema F, Spiekman S (2020) Osteological re-description of Macrocnemus fuyuanensis (Archosauromorpha, Tanystropheidae) from the Middle Triassic of China. Vertebrata Palasiatica, 58 : 169 - 187. doi: 10.19615/j.cnki.1000-3118.200525

Miedema F, Spiekman SNF, Fernandez V, Reumer JWF, Scheyer TM (2019) Reconstructing the Cranial Morphology of the Early Archosauromorph Macrocnemus using Synchrotron Microtomography and 3D-Imaging. JOURNAL OF MORPHOLOGY 280 : S180 - S181.

Spiekman SNF, Neenan JM, Fraser NC, Rieppel O, Fernandez V, Scheyer TM (2019) The Skull of Tanystropheus as Revealed by Synchrotron Microtomography and its Implications for Phylogeny and Functional Morphology. JOURNAL OF MORPHOLOGY 280 : S223 - S223.

Spiekman S, Scheyer T (null) A taxonomic revision of the genus Tanystropheus (Archosauromorpha, Tanystropheidae). Palaeontologia Electronica, doi: 10.26879/1038

Spiekman SNF (2018) A new specimen of Prolacerta broomi from the lower Fremouw Formation (Early Triassic) of Antarctica, its biogeographical implications and a taxonomic revision. Scientific Reports, 8 (1) : doi: 10.1038/s41598-018-36499-6

Werneburg I, Spiekman S (2018) Mammalian embryology and organogenesis, In: Mammalian Evolution, Diversity and Systematics, Zachos F, Asher R (Eds). Walter de Gruyter GmbH & Co KG :